yes, the wiring harness for all toyotas is the same. It says on the package that the harness is for like 87 toyotas and above. So it works on all toyotas from that year upwards.
The differences are that some gts have amps and more speakers and a more expensive head unit on some systems.
you can buy a whire harnedd for like 7 bucks at the most, i just put my system in, sucks ass though bc the whole car rattles and flexes a bit too much, gotta bust out the dynamat, silicone foam, putty, and carpet now!
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