Looking for Specific Field to Specify Canadian Taxes Paid on Dividend Income

Hello -

My question pertains to the application of a foreign tax credit to passive income.  Following are details:

1. I live in Canada, but traded with a U.S.-based company when living in the States.
2. I have a 1099-DIV is from the U.S. company. 
3. For sake of discussion, assume 
   1. Box 1b (ordinary dividends) is $150
   2. Box 7 (foreign tax paid) is $0
   3. I paid $25 USD to Canadian Revenue Authority on the $150 dividend
   4. TurboTax says I owe $20 USD.
4. What specific page in TurboTax (and in what field) do  I enter the fact that I've already paid $25 USD to Canada - thereby offsetting the $20 TurboTax says I owe?   I have stepped through each every page in TurboTax and experimented with every field and none reduce the tax.   I assume that I do not enter $25 in Box 7 (foreign taxes paid) because that amount must match what appears on my 1099-DIV,  but I'd expect that TurboTax to provide a similar field. 

Thanks in advance for any help.

Patrick