Okay, so here's where my Window modules were and now are (used to be on the doorpanel, now they're attached to the door itself) They're still in the same location in the end, just attached to the other side. (well, that and I now put each module in it's own door) I recommend attaching your crossovers to the door if you do it at all because it makes dealing with the wires thatmuch easier whenever you may pull your panels in the future. Less to dis/reconnect every time. But still, I really do think that your best bet would be to just pull new wires to your doors if you want to run the tweets tehre as well, and tuck those things under your seat. they're HUGE. I don't know what's up with that, if it's entirely necessary or just a showy kinda deal, but dayem.