Of all the unites iv installed on the WK's the Redarc Unit is the best to install , very compact , i mount the button & led just below the headlight control switch on the drivers side & as for the blue pick up wire its taped to the loom up inside the passenger rear inner trim panel below the quater window wating for u to conect it to ur controller of choice
, while ur there run some 4mm twincore to the same point , 1 for blue wire & the other for the brake light power wire , its easier to get the power from the tail light rather than play with the brake peddel switch as they are sensitive & can play up
oh & 1 other thing while u have ur head under the dash remove the carpet from around the footbrake leaver & check the activation wire from main harness on firewall has not rubbed through on the peddel frame , if so repair it & re-rout the wire out of the way , so if ur cruise control plays up this is the fix for it