Ok so for auto dimming have a look first you may find the power is already up in the roof, if not piggy back fuse or take up an empty slot in the fuse-board.
As for TPMS you can install a piggy back fuse or take up an empty slot in the glove-box fuse board.
It's becoming more common to come across the Astra with no rear board, yet they still leave the factory with TPMS, heated seats, dimming mirror etc, the most annoying part is there is no wiring information on TIS to cover cars without a rear board.
Please note TPMS will require a VCI code.
As for TPMS you can install a piggy back fuse or take up an empty slot in the glove-box fuse board.
It's becoming more common to come across the Astra with no rear board, yet they still leave the factory with TPMS, heated seats, dimming mirror etc, the most annoying part is there is no wiring information on TIS to cover cars without a rear board.
Please note TPMS will require a VCI code.
Astra-J 2.0 CDTI S/S
Retrofitted AFL, TPMS, Navi950, BT, DAB, Rear Camera, Infinity sound system, Towbar, Flexfloor & more.
I can do programming and retrofits using genuine GM MDI and Dealer software.