So here is low down. I just picked up a pioneer 2 din head unit a GMOS-04 and Pioneer TS-G1644R 6-1/2" 2-Way Speakers. I was able to get the head unit in no problem but I seem to be having trouble with the front speakers. I opens up the door yesterday to find 2 speakers the mid and tweeter. It was attached with 4 wires coming in to a plug (4 pin) than 2 going to each. Which means a x-over some where! I just hooked up my speakers with the mids which won't be giving me the full power and they sound VERY week. Did I miss somthing? Is it because these are 4 ohm and the factory where 2 ohms? Also how do I wire these with the crossover? Could I find it and remove it? Or do I have to rewire everything? Sad that I installed this new stuff and sounds worse!