Fairly easy after fitting the siren per instuctions feed the wire through the grommet situated low down in the engine compartment just drill a hole through its only rubber take red wire to fuse box and attatch it to fuse for interia light next take the wire for the alarm flash to the dashboard again drill a hole to insert it connect wire arm the alarm and check all doors simple i have just done two takes about half an hour
paul
November 2008