Just get 2 extra bulbs and bulb sockets from the outer tails along with some extra wiring....grind on the socket hole of the inner tails and maybe the socket itself w a dremel until you get it to fit snugly...the donor socket should have 3 wires instead of the existing sockets 2....one for parking, one for brakes, and one ground....connect the existing 2 ...then splice the 3rd into your outer tails brakes...loosely connect , then check to make sure it works before taping or heat tubing all your connections together. Ive done this mod on several cars front turn signals as well w no problems ...just make sure no opposing wires touch each other if your not disconnecting the battery or youll blow a fuse or your bulbs....only tools youll need are a wire stripper and some electrical tape or heat shrink tubing
Need :
7443 sockets x2
7443 bulbs x2
extra wiring
dremel w grinding stone