I have a 2004 xc90 t6 with the 3rd row seat and premium pkg. I want to install a subwoofer in the vehicle since the factory one was deleted due to the 3rd row seat. I know that it cannot go where the factory one would but I was wondering if anyone had installed an external box one, if the vehicle is prewired for it and where the wires can be found.
I read a posting in which someone had indicated that it was prewired but I cannot remmeber where I read it at Every stereo shop i visited wants to pull the dash apart and dealer service dept is useless in this regard.
Thanks
John
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