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So I was wondering if anyone else was able to use a 3rd brake light from a different make/model for our cars.
For those of you who had an OEM wing with the built in brake light, you did not have a 3rd brake light on the rear deck of your car, but you did have the option of adding it since the connection was still there hidden under the deck lid. However, there was a problem with the wiring where only a few bulbs lit up. (I've replaced the bulbs and even used a different unit, but the same bulbs stayed lit/out) I remember reading somewhere that someone was able to basically take the 3rd brake light from a BMW and use it as a 3rd brake light on their 2GS. Are these plugs basically the same for all cars?
I've dealt with having just 3 bulbs light up for awhile now, but I want a fully functional 3rd brake light, so I figured someone might have a solution to this.
Running wires from the functioning bulbs to the non functioning ones does not work and not having a 3rd brake light is illegal.
I had the same issue when I removed the rear spoiler. My rear deck didn't have the 3rd brake light. So I bought a used one thinking I would just cut off the hole and install it, but then after thinking I would butcher up the deck I decided to go aftermarket.
I bought an LED light bar from eBay and I cut the wiring from the used 3rd brake light (the female connector) and wired to the LED light then I just plugged and play to the factory connector running the wires through the side of the rear window into the center of the headliner and used double sided tape to hold the light up top.
I had the same issue when I removed the rear spoiler. My rear deck didn't have the 3rd brake light. So I bought a used one thinking I would just cut off the hole and install it, but then after thinking I would butcher up the deck I decided to go aftermarket.
I bought an LED light bar from eBay and I cut the wiring from the used 3rd brake light (the female connector) and wired to the LED light then I just plugged and play to the factory connector running the wires through the side of the rear window into the center of the headliner and used double sided tape to hold the light up top.
I had the same issue when I removed the rear spoiler. My rear deck didn't have the 3rd brake light. So I bought a used one thinking I would just cut off the hole and install it, but then after thinking I would butcher up the deck I decided to go aftermarket.
I bought an LED light bar from eBay and I cut the wiring from the used 3rd brake light (the female connector) and wired to the LED light then I just plugged and play to the factory connector running the wires through the side of the rear window into the center of the headliner and used double sided tape to hold the light up top.
I had a similar concern years ago when I ditched the OE trunk spoiler in favor of a Junction Produce part when I painted the car years ago. We resolved this by using a factory brake light out of a MK4 Supra - which was available new from the Toyota dealer at the time (I assume you could still source one new). It matches the curve of the 2GS trunk perfectly.
I liked the fact that it was a Toyota part and LED, and wiring was pretty easy, although I did have to cut the connector off the Supra light and make my own. Be prepared to cut a slot in your trunk, though.
hahaha, i literally mentioned you in post # 5 but i couldnt think of your screen name or name atm (its Bob right?) i just knew you were a really old OG who had a super clean SBM with Modulare M12's
Originally Posted by sakataj
i have seen older members mold a Supra clear 3rd brake light into the trunk, i always wanted to do this also.... other than that nope
YOU LIE! 
Alternative 3rd Brake Light
