Audio Question

[taylore36]

I have a 99 M3 with an aftermarket deck kenwood with s/w output how can I install a amp and sub to this deck can I just run the amp wires from the deck to the amp then plug everything up or do I have to "rewire" the car also if I have to rewire the car what is involved and how can I do it or where is a good place to find more information .. Taylor

[carstereopro]

You need to run a pir of rca cables and a remote turn on lead to the subwoofer amp from the Kenwood radio.

Then you will need to run a power lead to the battery (fused at the battery), and a chassis ground from the amp.

Then run your speaker leads from the amp to the subs

[taylore36]

I installed the equipment today and everything went threw good but im worried about hearing people saying that you have to rewire because of the grounding system will this be safe- Kenwood deck with the adapter to factory harness, rca's from deck to amp and led wire sub and amp in back with power wire. Will the stock amp cause trouble in the deck?

[carstereopro]

Originally Posted by taylore36

I installed the equipment today and everything went threw good but im worried about hearing people saying that you have to rewire because of the grounding system will this be safe- Kenwood deck with the adapter to factory harness, rca's from deck to amp and led wire sub and amp in back with power wire. Will the stock amp cause trouble in the deck?

"have to rewire because of the grounding system will this be safe" - no.
"Will the stock amp cause trouble in the deck?" - no.

You should have tha amp grounded to chasis, within 16" of the amp. Running a higher powered signal into your factory amp is just like adding a line driver to an aftermarket amp & head unit. You are feeding in a more powerful and cleaner signal, resulting in cleaner output at higher volume levels from your factory amp.

So what you perceive as louder output from your factory amp is actually a result of feeding a cleaner and more powerful signal into the amp and getting a much cleaner output signal from the amp at all voulme levels.

[taylore36]

thank you, you have been very helpful