Secondhand Alarms and immobilisers

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When  buying secondhand alarms and immobilisers it is important to check that the wires can be correctly identified, all thatcham approved systems that i have dealt with have some of the critical wires black, when these devices are new they are labeled for identicication, if they have not been labeled when removed then it is very difficult or even imposible to work out which wire is which even with wiring diagrams and manuals. My advice is to check with the seller that they have been labeled before you buy, if anyone has any more queries regarding this feel free to email me via my website www DOT AutoElectronics DOT Freeserve DOT co DOT uk

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