So I installed a hiphonics 4604 amp and 2 10inch type Rs in the trunk using a hi/lo converter.

It appears that the last owner of the car had a nice system in it as we found out that he had it set up for screens in the head rest and I found the tv tuner thing when we did the install. I looked for a FM modulator behind the radio and I did not find one.

As of right now I am getting very bad feedback in my speakers. Like its getting bad signal from the station. If I swap to CD/mp3 it sounds fine. Soon as I kick on the radio its back to sounding like poop again.

I have all wires grounded along with the amp and the hi/lo grounded to the stock location. I cant seem to find any other reason why I would get bad signal from the station just after a amp/sub install.