Love my 99, but one thing that always has bugged me is the lousy range I get with my remote door lock. I get maybe 5-10 feet range with fresh batteries. Very frustrating.
It turns out the Remote Door Control Reciever Box is mounted under the dash on the drivers side surrounded by a bunch of metal. The antenna is located inside this box. This is the reason why our remote control range is so poor. Box needs to be located higher and away from less metal.
@Ayune came up with a genius idea on this site to modify the Remote Door Control Receiver Box (151300-5816). He and then a few others after them got ranges to 100 feet plus.
I wanted to move my Remote Door Control Reciever Box to a better location (up higher and less metal surrounding). The best place in my opinion was mounted vertically up high right behind my radio. To do this I would need to find and source proper connectors to make an extended plug and play wiring harness. It turns out the connectors for this box is the same as some earlier year Toyota radios. I was able to find the correct connectors made by Metra (see pics below).
@Ayune was nice enough to help me build a custom 6 foot plug and play harness for my project.
Got box mounted right behind radio using some zip ties. Mounted box to large metal bar right behind radio. You will want to put some felt on the back of the box to stop and vibration or noise.
Got everything hooked up and now I have 55-60 FEET!!!
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