Can you name the mystery switches and plugs and nobs?

[DougR]

Group

I'm a new owner with no owners manual. My 1990 GL1500SE has some nobs, plugs and switches I do not understand. I would appreciate any experts telling me the purpose of the following:

There is a switch and a plug on the gas cap panel. When I turn on the switch, the switch lights up. What else is it doing? Warming my seat? That would be nice but I can't tell. Is it making the plug to the right of it live? What is the plug for? No non-factory radios on it. Maybe a plug for electric jacket?

There is a switch on the front of the center of the handlebar... to the left and front of the radio fade nob. No idea what it does.

There is a switch at the bottom of the left passenger cubby that lights up when it come on. No idea what else it may do but it looks the same (after-marketish) as the one on the gas cap cover. Any ideas?

Finally, there is a switch beside the passenger volumn labeled T X. T for talking on the intercom? I thought the intercom was voice activated. T for talking on the CB? X for ejection seat? Any ideas?

Thank you very much for your help.

Doug

[cbx4evr]

Those switches were installed by some previous owner. Best way you are going to find out what they do is to follow the wires back and see what they are attached too. A manual will not help you with this because they didn't come from Honda.

My guess would be that the plug is for some form of heated clothing and the switch applies power to it.

May be the same in the rear. Is there a plug there too?

Can you ask the previous owner?

[DougR]

no plug for the back switch, no way to contact prior owner.

[cbx4evr]

Follow the wires. Maybe grip heater?

[WingAdmin]

My guess for the TX button is CB transmit for the passenger. As for the others - like others have said, you'll have to trace the wiring to know for sure.