Park brake signal wire for aftermarket stereo install.

[springer01]

Installing Alpine iLX-W770 head unit with Alpine KTA-450 Power Pack compact 4-channel car amplifier on my son's 2020 Ranger that had the small 4.2" screen . It requires park brake signal wire, and has wires for VSS speed sensor and reverse light. Trying to figure out where to find this wire without having to pull the body panels around the hand pull park brake. Also wondering if the other wires(speed sensor, reverse) are necessary for anything. Any help would be greatly appreciated.

Thanks
Tanner

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[springer01]

I ended up finding a way to access the park brake by removing the boot. Kinda tight in there to get to the wire, but I think I can get a t-tap on it.