OKAY Okay i know your just gonna say search more but i have and it just doesn't make sense. i just installed some subs and an amp in my 8 (bose system) the amp works turns on but i have no sound i installed a wally world loc tapping into the rear speakers. any idea? my front door amp is not connected thank u previous owner. dont know if that could effect everything? Please help.

 

have you played with the gain adjustment? most amps come set to the minimum gain at 5-6 volts, if your loc is only putting out 2 it wont give any sound, also did you tap in to the speaker wires at the speaker, or the line input to the bose amp?
this is the thread i found most useful when hooking mine up https://www.rx8club.com/showthread.p...129#post252129

oh an edit, make sure you have the positive and negative inputs on the loc right, if you have the right chan positive in the neg spot and the left chan positive in the positive spot it will cancel out and you will get no sound, try switching one side and see if you get sound

 

i taped in rt at the rear speakers. i havent been able to find my main amp its not under the rear seat. the front passenger door amp isnt hooked up the sub is bypassing it should i connect there?

 

the main bose amp is the silver box between the rear speakers...the front speakers dont matter if youre connecting an loc as you are tapping into the rears

 

okay so should i hook the loc in before the amp??

 

well as per this thread https://www.rx8club.com/showthread.p...129#post252129
and my experience with my system i would say yes that would be best, you get a better signal input to the amp from the pre amp lines