Sienna head unit
 

1999 Sienna CE. The stock deck in my van died. I noticed that there were 5 bundles in the dash for it. My simple CD unit was using 3 bundles.Anyone know what all 5 are for??
I have heard that this model has an amp buried in the dash somewhere.... I can't see it but I didn't tear the dash apart.... is it in there???
When I put a replacement mechless single DIN unit in there I really don't want an amp involved....so I am wondering what bundles are just for speakers and if they are routed thru the amp...? I was maybe going to avoid trouble by wiring the unit direct to the battery and running new copper 16 ga speaker wire to the front speakers at least.Is it hard to get those plastic door panels off???? I see 2 screws on top so far...what do you know...?