Is anyone having an issue with the top rear-mounted antenna base being slightly loose on a 2011 SRX? I can see daylight under the base, about a 1/8 inch gap (the base is the part that is painted the body color) and can rock it back and forth somewhat but it still feels securely fastened to the roof. No obvious way to tighten it up. Is this a dealer visit? That's a 220 mi round trip for me.