I finally got a round to documenting some mods I did to my Kenwood TR-9130 2metre All-Mode trasceiver and TR-9500 70cm All-mode transceiver. Basically I replaced the incandescant lamp with green LEDs to provide a better backlit Signal meter, plus some other improvements.
see the modifications here on my website:
http://www.qsl.net/vk2kfj/tr9130_tr9500.html