Signal/park light problems

[yoshi]

Got a bit of an electrical problem, hopefully you guys can help me with. I installed an EZ wiring loom & everything worked fine until I fitted the lights in the grill which are original old stock. There's a double element bulb in there 1 for park & 1 for signal. If I signal left or right all 4 lights flash. I disconnected the park lights, now when I signal right it's ok but when I signal left the front left & both rear lights flash. Any ideas? Thanks