Need help on installing a bass tube.......

well we need to know if you got an aftermarket radio, or if your still factory.. anyhow..

i wanna say the yellow wire goes to the battery, im not certain on the color tho (your best bet is to find a rubber grommit somewhere under the divers dash) .. blue will go to your switched +12v, or your 'amp turn-on lead' on the back of your radio, and also youll need to run a set of rca's from behind your radio to the tube..

if your useing the factory radio, you need to buy a high-to-low converter, basically itll attach to your rear deck speakers and take the hi signals your factory radio is putting out, and convert the signal to a lo signal (rca)..