I am going to be installing a new Pioneer AVH-X5500 this week in my 07 and since I havent done this before I have a quick question. I know the new head unit is rated at 50wx4 and my Tundra has 6 speakers in it. Can I unhook the two dash speakers so the remaining four speakers will get 50 watts each?. I have the mounting kit and harness adapter ready to go. After 16.5yrs doing HVAC commercial service work I hope that this should go pretty seamless. I will be pissed if I can rewire a one million dollar chiller and not be able to figure out this. I am not installing new speakers yet, doing all my other mods after my June golf trip is over.