on an Aprilia RSV Mille.
unwired the old signals, wired up the new LP flushmounts on the front...they work fine.
Wire up the back set, get a faint glow and flicker front and back when I throw the blinker switch but...alas, no flash.
Unwire the back set, front set works fine.
All stock signals worked.
what's the problem? BTW, both front and back are single filament.