Well radio shack is the only place I know. Try another location I have always found them to be happy to serve me. I use them in a lot of different citys as well. now about the cards there is a spot in the manual that tells what cards you can use after reading that I had abetter understanding of my unit. It might be on the web site. But what I did was to order from the internet. Human ware will sell you any thing you want if you can afford it. Some times that is the best thing to do you will know you have the right thing. I hope this helps. ----- Original Message ----- From: rita weyler To: gps-talkusers@xxxxxxxxxxxxx Sent: Monday, June 25, 2007 7:16 PM Subject: [gps-talkusers] questions to ask I didn't get an answer so I am submitting it again. Hello all I want to buy a bluetooth speaker for my gps I have a braille note MPower bt. I have . tried to buy different things e.g. sd cards for my bn. I have had a lot of trouble. I have actually had some people be quite rude. I want to know what questions I should ask and what I should look for when shopping for a bluetooth speaker so I can find something that meets my needs. If you can suggest where I could purchase such a device I would appreciate that, also. I would like to stay away from radio shack because they were so rude. I know I will need one of those toggle switches as well. Thanks lots for your help. Rita