I'm pretty pissed about it myself, this is my first Toyota, possibly my last. I bought it certified from a Toyota dealer, this I would expect from a buy here pay here lot, but to not stand behind your product, and jack up the cost of install to make me feel like it's truly a 50/50 cost split makes me further upset.
I just discover the same problem on my 05 4runner...who did you contact at Toyota? can you pass on the Email address? thanks.