Leaderboard

Well I finally got around to finishing this little project, using a Key Fob & relay board from ebay, that are primarily designed as a "garage door replacement" item, but can find all sorts of other remote control applications. The Fob battery is a 12V A12 model, which will last for years. Just make sure when you order one, that it is either an instantaneous, or momentary model. You don't want a latching model, that keeps the horn on. Some of them can be programmed to be either, instantaneous or latching. Here is one with 2 x Fobs, 2 channel relay board & utility box for AUD 15.00 with free postage. The cheapest way, is by using a single channel/relay model, but I used a 2 channel, 2 relay one, where I paralleled the two (2) off N.O. relay contacts together, as well as the two push buttons on the Fob PCB, to make it super reliable. This is what it finished up looking like, inside the "horn bar" removable section, of the steering wheel. Bit of "blue tack" to keep all the wiring in place, & the Fob PCB is low enough profile, that is sits nicely in the steering wheel horn bar, with a bit of thick double sided tape. There is no wiring at all between the horn buttons & transmitter, to the car wiring, completely eliminating the horn ring contact & the spring loaded pin. The little relay board is simple fitted inside a small plastic utility box, sold by Jaycar / Altronics etc. There is only three wires coming out of the utility box.. Ground which is connected anywhere convenient to the car's frame. A permanent unswitched & fused 12 volt supply. The N.O. contact of the little relay board is connected to the "switched" horn wire, which can be accessed in the loom, on the plug, right at the base of the steering column. Most Rollas don't have a horn relay, & the horn button contacts switch the full horn current. Although the N.O. contact of the little relay board, depicted above, are usually rated for 10A, it might be wise to have that relay switch an automotive 30A relay up close to the horn/s proper, so there is no high current at all flowing through the little relay board & it's printed circuit board tracks, in case you get a short circuit at some time, in the horn circuitry. Works like a charm, & so happy, to have finally got rid of that "troublesome" horn contact ring, altogether. If anyone, is enticed to do similar, & needs some help, then send me a PM, & I'll do a sketch of the simple wiring options, & send it to them. Cheers Banjo

Hey I'm holding an original sales brochure here and this is what is says; (Obviously weight will differ so take it with a grain of salt) Dimensions and weight: Overall length : 3980mm. (156.7 in) Overall width : 1505mm. (59.3 in) Overall height : 1405mm. (55.3 in) Kerb weight : 765kg (1685 lb) Hope that helps, it has a shitload more info too