OK, so I bought a brand new Toyota Tacoma last summer and the OEM stereo is junk. It has tweeter in the dash, 6x9 speakers in the front doors, and 6.5 round speakers in the rear doors. The stock head unit doesn't even have enough power to run the rear speakers. (I checked online and this is a very common issue. At 100% volume the rear speakers are so quiet you can barely hear them over the engine.) So I'm looking at upgrading, but finding it's a lot more complicated than it was back in the 80s. You have to take the doors completely apart to put new speakers in and to run an amp you have to take the dash apart to run the wires. Has anybody here done anything like this?