DIY: Add a sub to your Bose equipped G35 Coupe

[Agent F]

Originally Posted by Sponger

Agent, I kept mine connected in case I ever have to remove the box for more trunk space..at least, I'll have some stock punch. Plus, I don't feel they interfere the overall sound of the system even after the sub and amp are connected.

So where did you tap into the line to get a signal to the Sub Amp? Is there a possible subwoofer output in the stock Bose HU, or is tapping some wires with the line out converter the only way to go about it??

[Gilley]

Read the first page of this thread. It tells you what wires to tap into and what to do.

The OEM HU does not have a sub out. The Bose amp takes 4 channels in from the HU and sends 4 channels out left, right, front and rear, and also sends signals to the 6x9 fake subs. I don't know if the 6x9's are stereo, but all that signal splitting happens in the Bose amp.

[lancer]

Originally Posted by Agent F

So where did you tap into the line to get a signal to the Sub Amp? Is there a possible subwoofer output in the stock Bose HU, or is tapping some wires with the line out converter the only way to go about it??

I believe it does not directly state where to tap the signal but in the example (according to the pics) it is the red/pink wires which are the left and right rear signals.

[G-Status]

you said to disconnect your rear 6x9s "so they dont muddle your sound"... will they sound any different than they did before the installation? or do you just mean that the quality of them wont be up to par with your new setup so you may as well disconnect them?

im assuming this step is not necessary*

if anyone can answer this i would appreciate it.

[Sponger]

Originally Posted by Agent F

So where did you tap into the line to get a signal to the Sub Amp? Is there a possible subwoofer output in the stock Bose HU, or is tapping some wires with the line out converter the only way to go about it??

What Gilley said...there are no preouts on the Bose HU. See the instructions on the first page. One of the best DIY threads on the forum.

[lostG]

ok so i tried this diy to my 05 coupe bose. i used regular rca and cut it in half. i spliced it like the post said to and i got some loud buzzing noise no music tho. then i hooked an old stinger speaker to rca converter. and it worked but i had very little bass. can somone please shed some light for me.

[Gilley]

What amp are you using? It must accept balanced inputs to plug spliced RCAs into it.

[lostG]

oh... what is a good amp for balanced inputs and how do you know if it has it.

[lancer]

Originally Posted by G-Status

you said to disconnect your rear 6x9s "so they dont muddle your sound"... will they sound any different than they did before the installation? or do you just mean that the quality of them wont be up to par with your new setup so you may as well disconnect them?

im assuming this step is not necessary*

if anyone can answer this i would appreciate it.

Unless you change something else, (amp, headunit, etc) they will sound exactly like they used to, and you're right, that might not be up to par with the newly installed setup.

[Gilley]

Originally Posted by lostG

oh... what is a good amp for balanced inputs and how do you know if it has it.

JL Audio's slash series amps acept balanced inputs, as do many others. You'll have to look at the instruction manual or web site of your amp.

[lostG]

if i do not have a balenced input amp can i convert it for a non balenced input amp?

[lostG]

is there a converter to convert differential balanced singnal to a single ended singnal?

[fishmd]

Originally Posted by lostG

is there a converter to convert differential balanced singnal to a single ended singnal?

Yes there is a LOC that you can use. PAC makes a good one that a lot of others have used. Do a search for it and you will find it. JL also sells one for that matter, but it is probably more expensive.

[lostG]

ok so all i need is an amp with adjustable input voltage selector? like .10-5v and 3-8v right

[Gilley]

Do you already have an amp or do you still need to get one? If you need to get one, buy one that accepts balanced line level inputs.

I'm sure there is something you can buy to connect to another type of amp, but I'm not sure what it would be because I haven't needed to find out.