So I recently picked up an Infinity Basslink sub, and thought I would start the install today. I pulled the instrument panel and then the head unit, only to find both sets of pre amp outs were running to the factory amp plug. I considered just splitting the front outs to two but I would lose the ability to fade front and rear. I put everything back together then I got the idea to check the factory sub I didn't even know it was still working,,, you could barely hear it. I pulled the panel and started checking wires. I found that the wires going in are left and right, there is also a 12v. I took left + and the - and connected to the basslinks high level in then connected 12v (this is the gheto part) and jumped the connection to the remote wire grounded to a nearby bolt put the panel back on and proceeded to listen to all my songs at a very high level with a much improved bass note most teenagers would envy. For the hour it took from start to finish a very easy install I will eventually run a constant 12 from the battery with a fuse so as to avoid the pop when I turn off the stereo, I will post some pics later when it stops raining. oh yeah did I mention I did all this without leaving the vehicle, It even snowed a little while I was in there.