2015 SGS - Audio Upgrade
Thread Starter
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5th Gear
Joined: Mar 2020
Posts: 9
Likes: 0
From: Fayetteville, North Carolina
2015 SGS - Audio Upgrade
I apologize in advance as I'm sure this has been discussed somewhere - but I've now read so many different topics that I am confused on what requirements exist.
I am looking to upgrade the OEM Radio setup on the 15' SGS - I've ordered the Soundstream's ST4.1000DB 4-channel marine amplifier, Focal 6.5's and went with Fosgate 6x9's - will I need to Flash the radio still or has there been some sort of fix to this?
I am looking to upgrade the OEM Radio setup on the 15' SGS - I've ordered the Soundstream's ST4.1000DB 4-channel marine amplifier, Focal 6.5's and went with Fosgate 6x9's - will I need to Flash the radio still or has there been some sort of fix to this?
Seasoned HDF Member
Joined: Jul 2017
Posts: 5,749
Likes: 1,603
From: High Point, NC.
I apologize in advance as I'm sure this has been discussed somewhere - but I've now read so many different topics that I am confused on what requirements exist.
I am looking to upgrade the OEM Radio setup on the 15' SGS - I've ordered the Soundstream's ST4.1000DB 4-channel marine amplifier, Focal 6.5's and went with Fosgate 6x9's - will I need to Flash the radio still or has there been some sort of fix to this?
I am looking to upgrade the OEM Radio setup on the 15' SGS - I've ordered the Soundstream's ST4.1000DB 4-channel marine amplifier, Focal 6.5's and went with Fosgate 6x9's - will I need to Flash the radio still or has there been some sort of fix to this?
Road Warrior
Joined: Jul 2015
Posts: 1,440
Likes: 185
From: Fond du Lac WI
I apologize in advance as I'm sure this has been discussed somewhere - but I've now read so many different topics that I am confused on what requirements exist.
I am looking to upgrade the OEM Radio setup on the 15' SGS - I've ordered the Soundstream's ST4.1000DB 4-channel marine amplifier, Focal 6.5's and went with Fosgate 6x9's - will I need to Flash the radio still or has there been some sort of fix to this?
I am looking to upgrade the OEM Radio setup on the 15' SGS - I've ordered the Soundstream's ST4.1000DB 4-channel marine amplifier, Focal 6.5's and went with Fosgate 6x9's - will I need to Flash the radio still or has there been some sort of fix to this?
Seasoned HDF Member
Joined: Jan 2013
Posts: 10,637
Likes: 1,246
From: Lake, Ms
Originally Posted by FrenchieM
I would say get a BT355 and call it a day for this set up.
As far as flashes go, they're not done to "recognize" the amp in your setup...especially when using aftermarket components. The flashes open up the rear channels and change the EQ curve. If you're not going to use a DSP, have your dealer flash your HU for 4 speakers and 0 amps just like the Ultra Classic. Then get a front and rear BT355 from Biketronics to tame the EQ curve and make your amp useable.
There is so much misinformation being put in these threads nowadays.
Road Captain
Joined: Feb 2016
Posts: 721
Likes: 204
From: Jerseyville, IL
I'm not certain that SS amp will even fit on stock radio tray. Two options here.
1. Biketronics Bt355 for front on street glide flash that's already programmed in
New amp based upon speaker specifications you have. Stinger, soundigital SD800.4, mmats 4110, etc.
2. Have Hd flash for 4/0 (ultra flash) to open up rear speaker outputs. BT355 on front and BT355 on rear. Still switch amps.
Option 2 only does 1 thing for you. Adds fade. That's it. The eq curve is still blah at best but can be tamed with bt355.
Personally, I'd pass on fade, buy 1 BT355, and call it a day. But you're probably going to need a different amp based on size and Bates recommendation of it being a turd.
1. Biketronics Bt355 for front on street glide flash that's already programmed in
New amp based upon speaker specifications you have. Stinger, soundigital SD800.4, mmats 4110, etc.
2. Have Hd flash for 4/0 (ultra flash) to open up rear speaker outputs. BT355 on front and BT355 on rear. Still switch amps.
Option 2 only does 1 thing for you. Adds fade. That's it. The eq curve is still blah at best but can be tamed with bt355.
Personally, I'd pass on fade, buy 1 BT355, and call it a day. But you're probably going to need a different amp based on size and Bates recommendation of it being a turd.
Seasoned HDF Member
Joined: Jan 2013
Posts: 10,637
Likes: 1,246
From: Lake, Ms
Originally Posted by Adenton528
I'm not certain that SS amp will even fit on stock radio tray. Two options here.
1. Biketronics Bt355 for front on street glide flash that's already programmed in
New amp based upon speaker specifications you have. Stinger, soundigital SD800.4, mmats 4110, etc.
2. Have Hd flash for 4/0 (ultra flash) to open up rear speaker outputs. BT355 on front and BT355 on rear. Still switch amps.
Option 2 only does 1 thing for you. Adds fade. That's it. The eq curve is still blah at best but can be tamed with bt355.
Personally, I'd pass on fade, buy 1 BT355, and call it a day. But you're probably going to need a different amp based on size and Bates recommendation of it being a turd.
1. Biketronics Bt355 for front on street glide flash that's already programmed in
New amp based upon speaker specifications you have. Stinger, soundigital SD800.4, mmats 4110, etc.
2. Have Hd flash for 4/0 (ultra flash) to open up rear speaker outputs. BT355 on front and BT355 on rear. Still switch amps.
Option 2 only does 1 thing for you. Adds fade. That's it. The eq curve is still blah at best but can be tamed with bt355.
Personally, I'd pass on fade, buy 1 BT355, and call it a day. But you're probably going to need a different amp based on size and Bates recommendation of it being a turd.
Thread Starter
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5th Gear
Joined: Mar 2020
Posts: 9
Likes: 0
From: Fayetteville, North Carolina
what amp would you recommend? Im not looking for a $$$$ setup.
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Road Captain
Joined: Feb 2016
Posts: 721
Likes: 204
From: Jerseyville, IL
What speaker models are you running?
That will determine amp specs needed. But off hand, I'm thinking Stinger 700/4 or Soundigital SD800.4S
That will determine amp specs needed. But off hand, I'm thinking Stinger 700/4 or Soundigital SD800.4S
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