I have passed a few messages back and forth between MP3Car.com regarding my circumstances and the end result is, chose what financially works the best for you and decide how bad you really need something.
Here is the issue. I live in Canada but I'm 10 minutes from the US border and I regularly cross the border because Canada will not offer the same products for comparable pricing. Shipping by Canada Post is ridiculously expensive. Shipping within the US is usually free or minimal cost and if you are out of state, tax is frequently not charged.
I regularly have things shipped by the Kinek delivery network, which means that I have items delivered to a NY business which receives my package and I pay them $5 for holding my package (they receive >2500 packages per month which makes the >$12500 per month). In turn I pay 13% tax on returning to Canada at Customs but I didn't have to wait 1-2 weeks while Customs would hold and inspect my package if it was mailed to Canada directly.
In summary: I usually get packages delivered in 1-5 days, tax free, free shipping, and then I pay a tax which is mandatory in Canada anyway (and occasionally the Customs Officers don't even make you pay). Shipping directly to Canada usually involves extra taxes, ridiculous brokerage fees (when UPS is used we call it Brown Tax), long delays (up to 2 months), and extra fees.
I have bought numerous items from MP3Car through Amazon.com using this method with no issues and items are usually received within 2 days. I realize they have a unique product.
But recently I had to purchase one item (read below) that is not on Amazon, so I had to order from them directly. Because my Visa and Paypal account are connected to my Canadian billing address I am forced to use the "International Shipping" option, even though I am having the items shipped to a US address (so this is a Domestic delivery involving a Canadian billing address).
Funny that anywhere else takes less than 60 seconds to process my Visa. Using GlobalShopex took 11 days. Not to mention that I am paying an additional 20% per order to pay GlobalShopex to process my credit card. I guess that is because an item had to be shipped from Baltimore south to Miami (GlobalShopex warehouse), then to be shipped back north (through Baltimore) to New York.
See the problem. I reduced my order to 1 item from 6 because I refused to pay the extra fees. I weighed the costs from every other dealer and chose them and chose to make my own wiring harness.
GlobalShopex might work for the rest of the world (although I've seen some outrageous quotes), but I don't see why they are involved in Domestic shipping.
I don't mean for this to be *****y and hopefully will be received as constructive criticism because I really appreciate the unique niche you have in this market and the resources you provide. I'd suggest that MP3Car needs to have all of their products available through Amazon.com because "foreign" customers are looking for alternatives unless they absolutely have to purchase through the MP3Car site.
Canadians buying from US, shipping to US address, using Visa
Have you contacted Visa, your credit card company to put a secondary shipping address on your account ( put the drop company address in the US where you pick up the shipments )? Snowbirds that spend the winter in Arizona or Florida do this so that they can have shipments sent to their US addresses. Then you can order from MP3Car and have it shipped to your name C/O the drop company in the US.